Introduction:

traumatic injuries cause biological, psychological and social alterations in children and adolescent who suffer them.

Objective:

to characterize schoolchildren with traumatic lesions in their young permanent teeth, from Heroes de Bolivia Dental Clinic, Las Tunas, in the period from September 2017 to September 2019.

Materials and methods:

a cross-sectional descriptive study was conducted in schoolchildren treated at Heroes de Bolivia Dental Clinic. The study population, selected by probabilistic sampling, consisted of 169 schoolchildren aged 5 to 11 years, with traumatic injuries in anterior permanent teeth. The variables studied were: age, gender, presence of trauma and kind according to Ingeborg Jacobsen classification, injured teeth, etiology and place where the lesion occurred.

Results:

the 9-years-old group, with 21.3 %, and male gender, with 113 children affected, resulted the most representative. 56.2 % presented uncomplicated crown fracture. 70.4 % corresponded to upper central incisors. Falls and sport practices, with 37.2 % and 29.0 % respectively, were the main causes, and 41.4 % of the dental injuries occurred in schools.

Conclusions:

traumatic injuries of young permanent teeth were more frequent at the age of 9, and in males. The most frequent injury was non-complicated crown fracture, and upper central incisors were the most affected.

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